The $ρ$ Spectral Function in a Relativistic Resonance Model

Details The $ρ$ Spectral Function in a Relativistic Resonance Model The $ρ$ Spectral Function in a Relativistic Resonance Model

2000-08-15

arxiv.org/abs/nucl-th/0008027v2

Nucl.Phys. A689 (2001) 753-783

Physics

Nuclear Physics

Nuclear Theory

47 pages, 19 figures, some discussion and formulae added, minor typos removed, accepted for publication in Nuclear Physics A

Scientific paper

10.1016/S0375-9474(00)00613-8

We calculate the spectral function $A_\rho$ of the $\rho$ meson in nuclear matter. The calculation is performed in the {\it low density} approximation, where the in-medium self energy $\Sigma_{med}$ is completely determined by the vacuum $\rho N$ forward scattering amplitude. This amplitude is derived from a relativistic resonance model. In comparison to previous non-relativistic calculations we find a much weaker momentum dependence of $\Sigma_{med}$, especially in the transverse channel. Special attention is paid to uncertainties in the model. Thus, we compare the impact of different coupling schemes for the $RN\rho$ interaction on the results and discuss various resonance parameter sets.

Affiliated with

Also associated with

No associations

Rating

The $ρ$ Spectral Function in a Relativistic Resonance Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The $ρ$ Spectral Function in a Relativistic Resonance Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The $ρ$ Spectral Function in a Relativistic Resonance Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-601231